hello everybody
I have a model class where i m using a foreign key self-referencing
here is my code :
class Categories(custom.Model):
url = models.ForeignKey(Urls, null=True, blank=True)
category = models.CharField(max_length=128)
parent_category = models.ForeignKey('self', null=True, blank=True)
def delete_all(self):
"""delete the parent category => deleting all sub categories
with the cascade delete"""
category = self
while category.parent_category: #the root category have the
parent_category NULL
category = category.parent_category
category.delete()
and when i m using the delete_all() with a sub category usually it
goes until the root category with the loop and should delete it with
all the sub categories because of the cascade delete .
But when i m calling the delete_all() it's goes in an infinity loop .
If someone can help me , and sorry for my English
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